Pocket-battery



(No Model.) 2 vSheets--Sheet 1.

L. T. STANLEY. POCKET BATTERY.

No. 363,304. -Patented May 17, 1887.

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L TSTANLEY. `POCKETv BATTERY.

No. 36:330/1. Patented May .17, 1887..

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UNITED STATES PATENT Orricn.

LUCIUS T. STANLEY, OF BROOKLYN, NEW YORK, ASSIGNOR TO AUGUSTUS N. LINDSLEY, OF ORANGE, NEW JERSEY.

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.POCKET-BATTERY..

SPECIFICATION forming part of Letters-Patent No. 363,304, dated May 17, 1887.

Application filed March 22, 1886.

To all whom, it may concern.-

Be it known that I, Lucius T. STANLEY, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Pocket-Batteries, of which the following is a specification, reference being had to the drawings accompanying and'forming a part of the same.

My invention involves certain improvements in the construction of what are commonly known as pocket-batteries77 for physieians7 and surgeons use. Generally these devices consist of a portable case containing a galvanic battery and an induction-coil adapted for use with various kinds of electrode for applying the induced currents to different parts of the human body. Y My invention relates to this kind of apparatus and is directed to the improvement of the battery, the electrodes, and the general construction ofthe apparatus, whereby the same is rendered more convenient, simple, and capable of a more general use and application.

I shall describe in detail the construction-of the apparatus, and then point out the distinguishing features of novelty which constitute my present invention.

Referring to the drawings, Figure l is a central longitudinal section of the main portionl of the apparatus with the electrode-handles in elevation. Fig. 2 is a sid`e View of the upper portion of the case shown in Fig. l. Fig. 3 is a top view of the electrode constructed for attachment to the battery-case. Fig. 4 is a central longitudinal section of a modication of the battery-case. Fig. 5 is a partly-sectional view of an insulating-handle for an electrode.

A Fig. 6 is a section of the same on line x x in Fig. 5. The apparatus, as a whole, consists of two parts---the case, in which are contained the battery and induction-coil, and the electrode, which may be attached to the case or to a separate handle. There are other accessories, such as a resistance, handle-electrodes, and the like, which will be hereinafter described.

The case A is prefer. bly made in cylindrical form of hard rubber or like material. B

is the cup, also of hard rubber, that contains the battery. It is adapted for attachment to the case A by a screw-thread or other form of connection. and secured a spherical cap, C.

I may use any convenient form of battery. In the present case the cup B is partially filled With the exciting solution, and :a cylindrical carbon, b, is secured in the cup, being attached to the sides or top of the cup and electrically connected by a wire, a, with a metal band, c, around the orifice in the cup. The zinc element D is inserted in a plug or stopper, E, of any kind. This plug may be of hard or soft rubber or other insulating material, and is tted to the mouth of the cellB, being adapted to close the same, so as to prevent the escape of the battery-fluid. I also use a drip-cup, F, which is a cylinder of insulating material closed at one end. When the zinc isfplaced in the battery-cell this drip-cup is placed over the plug or stopper E. On the other hand,

when the battery is not in use, the zincis placed 4in the drip-cup, and the stopper inverted and forced into the mouth of the battery-cell.

The central portion of the stopper E is of somewhat greater diameter than the ends, and around it is a ring or band, c, of metal in electrical connection with the Zinc. On the sides 'of the drip-cup are two metalstrips, df, forming spring-contacts that bear, respectively, on the bandse and c when the drip--cup is placed upon the stopper E. The strip d is in electrical connection with a metal pin, g, in the center of the bottom of the drip-cup, and the strip f is in contact with a band, h, of metal around the edge or" thedrip-cup. v

Above the space occupied by the drip-cup is the induction-coil. This consists of the ordinary primary and secondary coils F G on a core, H. The coil is supported by an insulating-head, b', that is secured rigidly in the case. Thehead b carries the vibratingk springarmature c' and the back Contact, d. The op- To the top of the case is fitted posite or lower end of the coil is protected by band h when the battery-cup is attached to the case and the drip-cup placed over the stopper E. The spring t' is one of the terminals ofthe primary of the induction-coil. The springjis connected with a metal strip, k, laid alongside the coil and ending in a contact-plate or block, k', in the head b.

K is a metal cylinder surrounding the induction-coil and forming a damper for modifying the intensity of the induced currents. The damper is moved by a pin, Z, extending through a slot in the side of the case A.

The cap C has two insulated metal strips, m a, secured to its inner surface. The strip m extends down into the ease A in front ofthe contact-piece 7s', and a slide, m', is used as a circuit-closer to force it into contact with said piece. Vhen this is done the circuit through the primary coil is completed and the vibrator set in operation. One end of the secondary coil is connected to strip a, which is connected with a metal ferrule, N, on the cap C. The other end of the secondary coil is connected to the'primary circuit, and the circuit extended thereby to the strip m, which connects with an insulated metal socket, M. Small perforated metal pins o lo are set in the cap C in electrical contact with the strips m a. The terminals of the induction-coil are therefore either the pins 0 o or the socket M and ferrule N.

The handle-electrodes O, with conductingcords and plugs, may be used in the ordinary way with this apparatus by inserting the plugs in the holes in pins o o.

I have devised a novel form of electrode for local applications of the current,whieh is used in connection with the terminals M N. This electrode consists of a metal cup, p, containing a screw-threaded pin, p', set in an insulating-block, q. The electrode is connected to the terminals by inserting the pin p in the serewthreaded socket M,which brings the ferrule N in contact with the cup p. I place over the top of the cup p a circular piece of felt or soft material, t, having a hole in its center. I then place an insulating-washer, r, over the felt and fasten it down securely by a rounded screw-nut, s. The edges of the piece of felt are secured by a metal ring, t', forced down around the sides of the cup p. This felt is to be dampened and the currents pass between it and the nut s through whatever portion of the body the electrode may be applied to.

Vhen the current is to be applied to very sensitive parts of the body, as to the temples and eye, it is not possible often to weaken the current sufficiently by the damper. I therefore use in this case a shunt, which I make of a strip of damp felt, i", having pins secured to its ends, and these pins I insert in the holes in pins o o when I wish to pass avery feeble current through the electrode. l

Under some circumstances it is more convenient to have the electrode on a small handie, and I therefore use a wooden. or other handle, T, provided with a ferrulc, N, and insulated metal socket M, to which the electrode may be attached. The connections are made in this ease by cords with pin or plug terminals. The pin on one cord is inserted in a hole, c, in the ferrulc N, and the pin on the other is inserted in a hole, c', in the socket M, passing through a .larger hole i n the ferrule. This makes the terminals in the felt and in the metal nut, respectively. Il", however, one of the pins be inserted in a hole, w, it will come in contact with both socket and ferrule and make the electrode one terminal. The construction of this device may be varied in many Ways, and I have shown an instance in Fig. 4 which shows the construction of a dcvice in which the drip-cup is omitted. The head e is extended to the requisite length and carries contact-springs that encounter the band c, connected with the carbon, and the pin g, which in this ease is set in the insulatingstopper carrying the zinc.

I-Iavin g now described in detail the construetion of the apparatus, what I regard as new and of my invention, and desire to secure by Letters Patent, is-

1. The eombi11ation,with a portable ease, of an induction-coil and battery, the battery having a zinc element carried by an insulating reversible plug or stopper adapted to close the battery-cell with the aine either in or ont of the same, as set forth.

2. The combination, with a portable case, of an induction-coil, a battery havinga zinc clement carried by a reversible plug or stopper, and a drip-cup fitting over the stopper and adapted to contain the zinc when the plug is reversed and the '/,inc removed from the battery, as set forth.

3. The combination, with an insulating hair dlc or ease, of an ixiductioaeoil, a battery with reversible plug carrying the zinc, a dripcup fitting over the plug or stopper for containing the zinc when it is removed from the battery, and contacts composed of registering springs and plates, substantially as herein described, whereby the circuit from the battery to the coil is completed when the parts specified are brought together.

4. In an electrode, the combination of a metal cup, a central insulated metal, nut, and a fibrous or felt strip held between thc nut and the cup, and a band or ring for binding the edges of the felt over the sides of the cup, as described.

5. The combination, with an induction-coil and means for applying the induced currents to portions of the body, of a strip of dampened. fibrous material connected to the induced circuit as aresistance-shunt to short-circuit more or less of the induced currents, as and for the purpose set forth.

6. The combination, with the ease A, of the batterycell B, the insulating plug or stopper E, carrying the Zinc element and provided with a metal ring, c, in contact with the zinc, the

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drip-cup F, adapted to fit over either end of rial connected to the circuit, so as to short-cirthe plug, and circuit-connections between the cuit more or less of the current, as set forth. coil and battery, as set forth. 9. In a double electrode for therapeutical 7. The combination, with the insulating case purposes, the combination of a central metallic 5 or handle, a metallic ferrule or band, and an disk or plate, an outer encircling metallic rim 2o insulated metal socket carried by the case and or plate, an interposed insulating-partition, an forming electrical circuit-terminals,ofa cup,as insulating-sleeve extending through the outer p, an insulated metal pin, p, contained theremetallic rim or plate, and an electric conducin, a felt pad or strip, t, metal nut s, and bindtor extending from the central disk 'or plate ro ing-ring t', all as set forth. outwardly through said sleeve, as set forth.

8. The combination, with a device for the local application of induced currents, consist- LUOIUS T' .STANLEY' ing, essentially, of two circuit-terminals in Witnesses: close proximity, of a high-resistance shunt PARKER W. PAGE, 15 formed by a dampened strip of' fibrous mate- J. DANIEL COMPTON. 

